That is a really good distance for a first ride. If you continue to have comfort problems after you get used to the bike you might go into a bike shop and pay them to help fit the bike to you. Or, experiment a bit yourself. I don't know how much flexibility there is in setup on a crank forward bike like your's. Does the seat back adjust up and down or forward and back?

I suggest using shoes with good stiff soles but which stay more stable on your feet than clogs. You can buy mountain bike shoes that are made to take cleats but not put the cleats on them. But you should be able to find street shoes that will work. My favorite biking shoes on my hybrid are a pair of hiking shoes.

Good riding and keep up with the reports!